The Watts LF288AC-Z32 3/4 is a 3/4" lead-free anti-siphon (atmospheric) vacuum breaker with FNPT connections, approved for high health hazard protection. It features a brass body and a silicone seat. Rated to 125 psi and 33°F to 180°F. This model is certified lead-free for potable-water installations.
This 3/4 inch lead free anti-siphon vacuum breaker backflow preventer prevents the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of a lead free brass body with polished chrome finish, chemical resistant silicone seat disc, and atmospheric vent to prevent spilling. It has a full size orifice to assure pipe size capacity and maximum flow. It is ideal for low flow, non-continuous hot or cold water health hazard installations such as on laboratory equipment.
Features
- Lead free brass body
- Full size orifice for maximum flow
- Female NPT inlet and outlet
- For use with hot or cold water
Common Questions
- What hazard level is this AVB approved for?
- It is rated for high health hazard (toxic) cross-connections, but only against backsiphonage. The assembly is listed to ASSE 1001.
- Is this model legal for potable water?
- Yes. It is certified lead-free to NSF/ANSI 372, which is what state plumbing codes require for any device in a drinking-water line.
- Can this device be field tested?
- No. It has no test cocks and is not a testable assembly, so it cannot be certified by a backflow tester. Where a jurisdiction requires an annually tested device, specify a testable assembly (double check, RPZ, or PVB) instead.
- Will this protect against backpressure?
- No. An anti-siphon (atmospheric) vacuum breaker protects against backsiphonage only. It will not stop backflow caused by backpressure — a downstream pump, elevated piping or a boiler — which requires a double check or RPZ assembly. It also may not be used under continuous pressure: the supply downstream of it must not stay pressurized for more than 12 hours in any 24-hour period.
- How does this have to be installed?
- It must be installed vertically (upright), above the highest downstream outlet, per the installation instructions and its ASSE listing.
Specifications
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Type: AVB
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Size: 3/4"
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Inlet Size: 3/4"
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Connection: FNPT
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Body Material: Brass
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Seat / Seal Material: Silicone
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Max Pressure (psi): 125
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Application: Domestic Water
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Backflow Protection: Backsiphonage
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Operation: Non-Continuous
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Pack Quantity: 24
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Country of Origin: Mexico
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Warranty: 1 Year Limited
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MPN: LF288AC-Z32 3/4
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Temperature: 33°F to 180°F
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Certifications: ASSE-1001, ANSI-A112.1.1, CSA-B64
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Lead-Free: Yes
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Assembly Type: AVB
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Hazard Protection Level: High Health Hazard
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ASSE Standard: ASSE 1001
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USC FCCCHR Approved: No
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Field Testable: No
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Number of Test Cocks: 0
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Shutoff Valves: None
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Approved Orientation: Vertical
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Flood Sensor (SentryPlus Alert): No
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Strainer Included: No
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Air Gap Fitting Included: No
